CN101178577A - Assembly component comprising two series of elastic structures and timepiece incorporating this component - Google Patents
Assembly component comprising two series of elastic structures and timepiece incorporating this component Download PDFInfo
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- CN101178577A CN101178577A CNA2007101695120A CN200710169512A CN101178577A CN 101178577 A CN101178577 A CN 101178577A CN A2007101695120 A CNA2007101695120 A CN A2007101695120A CN 200710169512 A CN200710169512 A CN 200710169512A CN 101178577 A CN101178577 A CN 101178577A
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- 239000000463 material Substances 0.000 claims abstract description 30
- 238000003780 insertion Methods 0.000 claims abstract description 3
- 230000037431 insertion Effects 0.000 claims abstract description 3
- 238000010276 construction Methods 0.000 claims description 121
- 229910052710 silicon Inorganic materials 0.000 claims description 16
- 239000010703 silicon Substances 0.000 claims description 16
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 15
- 239000012212 insulator Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000005489 elastic deformation Effects 0.000 description 7
- 238000005530 etching Methods 0.000 description 7
- 230000001133 acceleration Effects 0.000 description 5
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000003486 chemical etching Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000001020 plasma etching Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
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- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B13/00—Gearwork
- G04B13/02—Wheels; Pinions; Spindles; Pivots
- G04B13/021—Wheels; Pinions; Spindles; Pivots elastic fitting with a spindle, axis or shaft
- G04B13/022—Wheels; Pinions; Spindles; Pivots elastic fitting with a spindle, axis or shaft with parts made of hard material, e.g. silicon, diamond, sapphire, quartz and the like
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B19/00—Indicating the time by visual means
- G04B19/04—Hands; Discs with a single mark or the like
- G04B19/042—Construction and manufacture of the hands; arrangements for increasing reading accuracy
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- G—PHYSICS
- G04—HOROLOGY
- G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
- G04D3/00—Watchmakers' or watch-repairers' machines or tools for working materials
- G04D3/0002—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe
- G04D3/0043—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe for components of the time-indicating mechanisms
- G04D3/0046—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe for components of the time-indicating mechanisms for hands
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Micromachines (AREA)
- Electric Clocks (AREA)
- Springs (AREA)
- Adornments (AREA)
- Measuring Fluid Pressure (AREA)
- Electromechanical Clocks (AREA)
Abstract
Assembly element ( 18 ) made in a plate of brittle material, including an aperture ( 32 ) provided for the axial insertion of an arbour ( 26 ). The inner wall ( 33 ) of the aperture ( 32 ) includes elastic structures ( 34 ), which are etched into the plate and which each include at least one support surface ( 36 ) for gripping the arbour ( 26 ) radially in order to secure the assembly element ( 18 ) relative to the arbour ( 26 ). The assembly element ( 18 ) includes a first series (S 1 ) of elastic structures ( 34 ) etched in a top layer ( 39 ) of the plate and a second series (S 2 ) of elastic structures ( 34 ) etched in a bottom layer ( 41 ) of the plate. A timepiece may be fitted with this assembly element.
Description
Technical field
The present invention relates to assembly element and the time meter that comprises it.
The assembly element of meter when the present invention more specifically relates to being used for especially of making in the sheet of brittle material of for example silicon, comprise the aperture that is provided for axially inserting mandrel, the inwall in aperture is included in the interior etched elastic construction of plate and each elastic construction comprises that at least one is used for radially clamping or pushing the area supported of mandrel, so that assembly element is fixed with respect to mandrel, wherein each elastic construction comprises the first straight line elastic strip of edge with respect to the tangential extension of mandrel, and area supported is arranged on the inner face of first elastic strip.
Background technology
Usually, at Shi Jizhong, the assembly element of meter pointer and gear is fixed by being advanced in its rotation mandrel in the time of for example, promptly impels hollow cylinder to pin, and the diameter of pin is slightly greater than the internal diameter of cylinder.Employed elasticity and the plastic properties that is typically the material of metal is used to the interior propelling of described element.For the parts of making by the hard brittle material that does not have spendable plastic range of for example silicon, hollow cylinder can not be advanced to as employed diameter tolerance in machinery tabulation on the routine rotation mandrel on+/-5 microns the magnitude.
In addition, being used for fixing the solution of the assembly element of pointer for example must provide enough power also element is kept putting in place when the vibrations.Count the required power of pointer during for routine for example on a newton magnitude.
For overcoming these problems, advised in the assembly element of for example silicon hairspring clockwork spring chuck, using the elastic construction that is arranged in the flexible strip shape of placing outside the aperture, so that chuck is fixed on the mandrel by advancing kind of arrangements, thereby uses the elastic deformation of bar to clamp mandrel and chuck is remained on the mandrel.The example of this type of fixing means discloses in European patent No.1 655 642 especially.
Summary of the invention
The purpose of this invention is to provide improvement to this solution, allow to use especially this assembly element as the time rotating element in the gauge body, especially as the time meter pointer.
Therefore, the present invention has advised the assembly element of the above type, it is characterized in that: assembly element comprises the elastic construction of first series in the upper strata that is etched in plate and is etched in the elastic construction of the second series in the bottom of plate.
Assembly element according to the present invention has improved the clamping force on the mandrel, to allow to distribute better the relevant stress of elastic deformation with the material that forms assembly element, and allow to be controlled at better the clamping force that obtains on the mandrel, keep fracture scope simultaneously away from material.In addition, in plate two-layer, make elastic construction and maximized the number of elastic construction with respect to volume size.
According to additional features of the present invention, the elastic construction of first series is different with the type of the elastic construction of second series.
The combination of dissimilar elastic constructions has allowed the technological merit combination with the structure of two types between top layer and bottom, for example to optimize tolerance along the linear acceleration of rotation with respect to the angular acceleration of rotation.
According to other features of the present invention:
The elastic construction of-two series relative to each other is offset on angle, makes at least one part of its area supported relative to each other be offset on angle;
-plate is the plate of silicon on insulator type, has silicon top layer and silicon bottom that the middle layer by monox separates;
-plate is the plate that has the asymmetrical silicon on insulator type of thin top layer and thick bottom, and the elastic construction of first series is made in top layer and the elastic construction of second series is made in bottom;
-assembly element forms by the rotating element that rotation is fixedly secured to mandrel, and the main body of rotating element extends in the top layer, and the elastic construction of second series is formed in extending axially of the main body that is positioned at bottom;
-time meter pointer formation assembly element;
-at least one serial elastic construction is such type, wherein each elastic construction is formed by the radially stacked of several parallel elastic strips, each elastic strip is radially separated by the straight line separator apertures that becomes two parts with the elastic strip of vicinity, two parts of separator apertures are separated by the bridge of material, the bridging of material connect the elastic strip of two vicinities and substantially with the area supported radially aligned, the aperture of the remainder that is positioned at last elastic strip and plate on the side relative with first elastic strip that piles up by becoming single part is to separating, the hole of single part is called mesopore, and mesopore is that elastic construction defines the radial play space;
-at least one serial elastic construction is such type, wherein each elastic construction is become by the fork-shaped of the inwall of receiving the aperture by the bridging of material, and wherein fork is included on each side of bridge of material usually to two branches that mandrel extends, and each branch is included near the area supported its free end.
The present invention has also advised it is characterized by and has comprised at least one time meter according to the assembly element of any feature in the aforementioned feature.
Description of drawings
Other features and advantages of the present invention will be more clear by reading in the following detailed description with reference to the accompanying drawing that provides with non-limitative example, and each figure is:
Fig. 1 is an axial cross section, schematically shows the time meter of the formed assembly element of being made by sheet of brittle material according to being equipped with of teaching of the present invention of time meter pointer among the figure;
Fig. 2 to Fig. 4 is the top view that schematically shows hour hands, minute hand and the second hand of the time meter that is coupled to Fig. 1 respectively, and they provide the top layer that is etched in each pointer and the stack elastic strip structure in the bottom;
Fig. 5 and Fig. 6 are the part zoomed-in views of installing ring of the second hand of the hour hands of Fig. 2 and Fig. 4;
Fig. 7 shows the part skeleton view of installing ring of the second hand of Fig. 4;
Fig. 8 is the view that is similar to Fig. 2, shows the alternate embodiment of elastic construction of the hour hands of the protruding component that comprises area supported;
Fig. 9 to Figure 11 is the view that is similar to Fig. 5, shows second embodiment of hour hands, minute hand and second hand respectively, and wherein bottom and top layer comprise dissimilar elastic constructions;
Figure 12 to Figure 14 is the view that is similar to Fig. 9 to Figure 11, shows the 3rd embodiment of hour hands, minute hand and second hand respectively, and wherein bottom and top layer comprise dissimilar elastic constructions; With
Figure 15 is the axial cross section along plane 15-15, shows the installing ring of the hour hands of Fig. 2.
Embodiment
In following description, identical or similar elements will be with identical reference number indication.
Fig. 1 schematically shows the time meter 10 that teaching according to the present invention is made.
Preferably, mandrel the 26,28, the 30th, usually use the time conventional mandrel in the meter core, for example be metal or plastics mandrel.
In following description, will use along the axial orientation of the rotation A1 of pointer 18,20,22 with respect to the radial directed of axis A1 with non-limiting way.In addition, element depends on that it is with respect to the radial directed of axis A1 and with the inner or outside indication of term.
Fig. 2, Fig. 3 and Fig. 4 show the advantageous embodiments for each of three pointers, respectively for hour hands 18, minute hand 20 and second hand 22.Each pointer 18,20,22 comprises installing ring 31 at this, and installing ring 31 defines aperture 32, and aperture 32 is provided to be used for pointer 18,20,22 is fixed to relevant mandrels 26,28,30 by axially being inserted in the aperture 32.The inwall 33 in aperture 32 comprises elastic construction 34, elastic construction 34 is etched in the plate that has formed installing ring 31, and each comprises at least one area supported 36 elastic construction 34, being used for radially clamping relevant mandrel 26,28,30, so as with pointer 18,20,22 axially with radially remain on mandrel 26,28,30 on and mandrel interfixed rotatably with relevant pointer.
According to teaching of the present invention, each pointer 18,20,22 comprises the elastic construction 34 of the first serial S1 in the top layer 39 that is etched in plate and is etched in the elastic construction of the second series S2 in the bottom 41 of plate, as illustrating with the cross section in Figure 15.
Advantageously, each pointer 18,20,22 is formed in the asymmetric plate of SOI (silicon-on-insulator) eka-silicon, comprises the thin top silicon layer 39 that separated by intermediate oxidation silicon layer 43 and thick end silicon layer 41.The plate of this type has the special advantage of being convenient to make by two etching steps distinct structure, for example make by chemical etching top layer 39 sides and by another chemical etching on bottom 41 sides, middle layer 43 stops etching fully with the restriction etching in each of layer 39 and layer 41 respectively.In etching behind top layer 39 and the bottom 41, carry out another and be etched with and in the district that determines, remove middle layer 43, to discharge elastic construction 34, to allow the elastic deformation of elastic construction 34.
Behind each pointer 18,20,22 etching, top layer 39 keeps being connected by the part in not etched middle layer 43 with bottom 41.Place outside this is positioned at aperture 32 at ring 31 these coupling parts.
According to the embodiment that illustrates, end silicon layer 41 remains on the bottom that installing ring 31 belows of each pointer 18,20,22 and its formed with respect to the remainder of the main body of pointer 18,20,22 uniquely and extends axially, remainder is formed in the thin top layer 39, as in Figure 15 as seen.
First advantageous embodiment according to elastic construction 34 of the present invention is described by inspection hour hands 18 now, as shown in Figure 2, and shown in Figure 5 in the mode of amplifying, and shown in Figure 15 in the cross section mode.With what note be, be at the elastic construction shown in this 34 static, promptly by inserting before relevant mandrel 26,28,30 is out of shape.
According to first embodiment, the elastic construction 34 of the first serial S1 and second series S2 has similar type, is to comprise constant bar L straight line and parallel of radial thickness substantially in the type that this had
nRadially stacked.Elastic strip L
nEach extends along the tangential direction with respect to relevant mandrel 26.The area supported 36 of each elastic construction 34 is arranged in the first elastic strip L that piles up on mandrel 26 sides
1 Inner face 38 on.In each elastic construction 34, each elastic strip L
nWith contiguous elastic strip L
N+1, L
N-1By becoming two part I
Na, I
NbStraight line separator apertures I
nRadially separate separator apertures I
nTwo part I
Na, I
NbBy the elastic strip L that has connected two vicinities
nAnd substantially with the bridge P of the material of area supported 36 radially aligneds
nSeparately.At elastic strip L
nBetween the bridge P of material of continuous series
nTherefore formed radially tie-beam 40.
Advantageously, each separator apertures I
nThe end have the profile of rounding, for example have semicircle profile, to prevent the accumulation of mechanical stress at end place, the accumulation of mechanical stress may cause as elastic strip L
nThe beginning of crackle when crooked.
In the example that illustrates, pile up formation elastic construction 34 and comprise three elastic strip L
1, L
2, L
3With two separator apertures I
1, I
2Separator apertures I
1nRadial thickness constant substantially and identical at this.
According to another feature of the present invention, the last elastic strip L that piles up
3Be positioned at and the first elastic strip L
1Relative side, this elastic strip L
3Radially separate by the hole 42 that becomes single part from the remainder of the plate that forms pointer 18, this hole 42 is called mesopore 42.The smallest radial thickness of mesopore 42 has been determined the maximum radial gap of elastic construction 34.Preferably, the radial thickness of mesopore 42 is constant and greater than separator apertures I substantially
nRadial thickness.
Preferably, form the elastic strip L of each elastic construction 34 of thick bottom 41
nNumber less than the elastic strip L of each elastic construction 34 that forms thin top layer 39
nNumber.
In the time of in mandrel 26 is inserted into aperture 32, the power on the area supported 36 of being applied to has caused all elastic strip L of each elastic construction 34
nElastic deformation, make these L
nThe core outward radial move, thereby the radial thickness that has reduced mesopore 42 is to beam 40 right sides.Elastic deformation has generated the radially clamping force on mandrel 26, is similar to advance to arrange.
With what note is that tie-beam 40 is with all elastic strip L
nInterconnect, make that they can all be out of shape simultaneously when radial force is applied to area supported 36, and make mechanical stress distribute, to minimize risk of breakage in several positions.
Preferably, in each elastic construction 34, elastic strip L
nThe first elastic strip L of length from piling up
1Elastic body L to the end
3Reduce gradually, this has followed the curvature of the outer cylindrical wall 44 of installing ring 31 generally.
According to embodiment shown in Figure 5, each separator apertures I
nRadial thickness on its whole length, be constant substantially, and all these separator apertures I
nRadial thickness equate substantially.For obtaining the maximum clamping force on the mandrel 26, in the given material volume of installing ring 31, each separator apertures I
nRadial thickness be minimized.
Advantageously, for each pointer 18,20,22, the number of the elastic constructions of arranging around aperture 32 in the elastic construction 34 of each serial S1, S2 34 is chosen as the function of the diameter of relevant mandrel 26,28,30, and as the function of the obtainable radial space between the outer wall 44 of the installing ring 31 of the inwall 33 in aperture 32 and pointer 18,20,22.Therefore, the diameter of mandrel 26,28,30 is big more and aforesaid radial space is more little, and then the number of elastic construction 34 is big more.
Therefore, in this embodiment, because the diameter of the mandrel 26 relevant with hour hands 18 is more much bigger than the diameter of the mandrel 30 relevant with second hand 22, and because the external diameter not to scale (NTS) of installing ring 31 ground changes, so equaling four in each of serial S1, the S2 of hour hands 18 number of elastic construction 34 being chosen as, and equaling two in number for the elastic construction 34 among each serial S1, S2 of second hand 22.With mid way, equal three at this in number for the elastic construction 34 among each serial S1, S2 of minute hand 20.
With what note be, for hour hands 18 and minute hand 20, elastic construction 34 distributes regularly around axis A1, makes the shape of in-profile in aperture 32 be respectively overall squares and triangles.
Be to make fixed system with at least three elastic constructions 34 and be convenient to installing ring 31 what note with respect to 26,28,30 centering of relevant mandrel.
Advantageously, the number of elastic construction 34 is identical in two serial S1, S2, but the elastic construction 34 of the first serial S1 is offset on angle with respect to the elastic construction 34 of second series S2.Therefore, if the hour hands 18 among consideration Fig. 5, then elastic construction 34 offset pi/4 of two serial S1, S2.Angular deflection allows the elasticity clamping force to distribute outer the placing suitably of mandrel 26, and the area supported 36 of the elastic construction 34 of the first serial S1 is with respect to area supported 36 angular deflections of the elastic construction 34 of second series S2 simultaneously.This angular deflection also has about the advantage of making during etching step, because this has minimized behind the RIE plasma etching of the both sides of plate (SOI) surface of the d/d median surface 43 of two athwartship plane.
According to the embodiment that illustrates, the elastic construction 34 of each serial S1, S2 angular deflection π/3 and in second hand 22, be offset pi/2 in minute hand 20.
According to another favorable characteristics, elastic strip L between the elastic construction 34 of the elastic construction 34 of the first serial S1 and second series S2
nThe number difference, this allows the value of the elasticity clamping force on mandrel 26 more fine to be adjusted.This also allows the clamping force value as elastic strip L
nThe function of axial width adjust because because the axial width difference between two layers 39,40, the elastic strip L of bottom 41
nAxially go up elastic strip L than top layer 39
nThick.
Now will be especially describe the specific structure of second hand 22 with reference to figure 6 and Fig. 7, the serial S1 of each of second hand, S2 only have two elastic constructions 34 and a fixed bearing surface 46.According to this embodiment, the first elastic strip L of two elastic constructions 34 of each serial S1, S2
1Between them, define acute angles beta, and they locate combination in one of its anchor portion substantially.Angle beta for example has the value of 30 degree.
For simplicity of illustration and be convenient to describe, two layers 39,41 of pointer 22 illustrate in Fig. 6 side by side with serial S1, the S2 of relevant elastic construction 34.
The structure that to consider bottom 41 now is similar but the fact of skew half-turn is described the structure of top layer 39 and relevant elastic construction (S1).
Fixed bearing surface 46 is tangentially extended with respect to relevant mandrel 30 and it has formed the end of isosceles triangle, and two of isosceles triangle other limits are by the first elastic strip L of two elastic constructions 34
1 Inner face 38 form.Fixed bearing surface 46 is arranged in the trapezoidal generally free end of clipping part 48 at this, is projected into 32 inboards, aperture.Clip part 48 and be etched in the plate that forms pointer 22 and clip part 48 at this and comprise two sidewalls 50,52 at this, each is parallel to article one L of relative elastic construction 34 sidewall 50,52
1Extend.
The mandrel 30 relevant with second hand 22 is used to abut fixed bearing surface 46 and against the area supported 36 of elastic construction 34.
With what note is that the profile of the inwall 33 in aperture 32 has the shape of isosceles triangle generally.
According to advantageous embodiments shown in Figure 6, in each elastic construction 34, each elastic strip L
nRadial thickness on its whole length, be constant substantially, and elastic strip L
nThe first elastic strip L of radial thickness from piling up
1To last elastic strip L
9Reduce gradually, each elastic construction 34 of the first serial S1 comprises 21 elastic strip L at this
n, these elastic strips L
nLength outwards reduce internally, and each elastic construction 34 of second series S2 comprises nine elastic strip L at this
n, these elastic strips L
nLength outwards reduce internally.Therefore, elastic strip L
1Radial thickness be suitable for its length, this allows for all elastic strip L
nObtained flexible uniformly substantially although its length is different.The present invention is therefore with mechanical stress homogenising in the whole material volume that is used for fixing, promptly in this homogenising in whole erection ring 31.
Certainly, at elastic strip L
nBetween this difference in thickness can be applied to other embodiment of pointer 18,20,22.
With what note is to form the elastic strip L that each piles up
nNumber can be according to multiple parameter, especially as the function of obtainable radial space, as the function of the clamping force of the hope on relevant mandrel, revise as the function of the material type that is used to make relevant pointer 18,20,22.Preferably, elastic strip L
nNumber thick bottom 41 internal ratios in thin top layer 39 less.
Fig. 8 shows the alternate embodiment of hour hands 18, it is with the different of aforesaid embodiment: each area supported 36 provides discrete protruding component 54, protruding component 54 has increased the friction between mandrel 26 and the area supported 36, fixes with the rotation that improves between mandrel 26 and the pointer 18.At article one L
1The tooth of interior etched triangular outline has formed these discrete protruding components 54 at this.
Certainly, this variation can be applicable to be arranged in reference to the minute hand 20 of figure 3 and Fig. 4 description and the area supported 36,46 in the aperture 32 in the second hand 22.
According at second embodiment shown in Fig. 9 to Figure 11, the elastic construction 34 that is arranged in two serial S1, S2 on each pointer 18,20,22 has different types.More specifically, the elastic construction 34 of the first serial S1 is for having the elastic strip L that piles up
nType, as describing and illustrate with reference to first embodiment, and the elastic construction 34 of second series S2 is to have the type of fork-shaped elastic construction 34.
Each elastic construction 34 of second series S2 is become by fork-shaped, and its bridge 56 by material is connected to the inwall 33 in aperture 32, and it is included on each side of bridge 56 of material usually two branches 58,60 to mandrel 26,28,30 extends.In addition, each branch 58,60 comprises the area supported 62,64 of contiguous its free end 66,68.
According to second embodiment, two branches 58,60 of each elastic construction 34 are crooked towards each other, thereby form almost " C " shape of sealing.
Consider to describe second embodiment as hour hands 18 shown in Figure 9.With what note be, elastic construction 34 is in static in this representative, promptly before being out of shape by the relevant mandrel 26,28,30 of insertion.
Each branch 58,60 of each elastic construction 34 has parabolical substantially shape, its first stiff end 70,72 be arranged on the bridge 56 of relevant material and its second free end 66,68 towards the free end 66,68 of other branches 56,58 of elastic construction 34.
Preferably, the free end 66,68 of the branch 58,60 of each elastic construction 34 is sufficiently close, make the inner face of each branch 58,60 near free end 66,68, be generally tangential to the axial surface of mandrel 26, so the area supported 62,64 of each branch 58,60 is positioned on the inner face of its free end portion relative with mandrel 26.
In the time of in mandrel 26 is inserted into aperture 32, the radial force that acts on the area supported 62,64 causes the elastic deformation of two branches 58,60 of elastic construction 34, makes the free end 66,68 of branch 58,60 radially outward move.This elastic deformation has produced the radially clamping force on mandrel 26, is similar to advance to arrange.
Preferably, elastic construction 34 distributes regularly around axis A1.
The third embodiment of the present invention is shown in Figure 12 to Figure 14.This 3rd embodiment and the second embodiment similarity are that the elastic construction 34 of the first serial S1 is by piling up elastic strip L
nThe elastic construction 34 of formation and second series S2 is become by the fork-shaped that has two branches 58,60.The 3rd embodiment mainly is with the different of second embodiment, and each elastic construction 34 is included in the main portion 74 of extending on each side of bridge 56 of material.Each branch 58,60 extends along rectilinear direction from bridge main portion 74 and material 56 relative ends.Each branch 58,60 to relevant branch 58,60 with respect to inclined.The area supported 62,64 of each branch 58,60 is arranged in free end 66,68 places of branch 58,60.
Preferably, the main portion 74 of each elastic construction 34 is extended along the interior cylindrical wall 33 that circumferential substantially direction is parallel to aperture 32, this has maximized the length of main portion 74 and rectilinear branches 58,60, so that the stress relevant with the elastic deformation of branch 58,60 is distributed in bigger volume.
The advantage of the 3rd embodiment is when mandrel 26,28,30 is assembled mutually with relevant pointer 18,20,22, to have produced the self-locking effect.In fact, the inclination of branch 58,60 allows the dynamic retroaction to the acceleration in the rotation, this makes this embodiment be suitable for fixedly being subjected to the assembly element of high angular acceleration especially, or be suitable for rotating element and have significant unbalanced situation on distribution of weight, this be for the time meter the situation of pointer.
In the 3rd embodiment, two branches 58,60 of each elastic construction 34 have applied thrust on relative direction, make each branch's 58,60 opposing pointer 18,20,22 with respect to the relative rotation of relevant mandrel 26,28,30 on preferred sense of rotation.In the example shown in Figure 12, first branch 58 of each elastic construction 34 has resisted pointer 18 relative rotation in the counterclockwise direction, and second branch 60 of each elastic construction 34 has resisted pointer 18 relative rotation in the clockwise direction.Therefore the elastic construction 34 of the 3rd embodiment provides especially effectively between pointer 18,20,22 and relevant mandrel 26,28,30 and has rotated fixed and arranged.
Make elastic construction 34 have to comprise part (part 56) and the form of a tangential orientation or circumferential orientation to reduce the rigidity of elastic construction 34 towards the fork of the straight line portion (branch 58,60) of relevant mandrel 26,28,30 orientations, this has allowed the radial play of enough values, to allow that described structure is fixed to mandrel 26,28,30, allowed the diameter tolerance of compensation mandrel especially.Each elastic construction 34 must have enough flexibilities and have less than the mandrel of the diameter of nominal value and be fixed to the mandrel that has greater than the diameter of nominal value to be fixed to.
Partly be applicable to first embodiment at this with reference to the advantage that the 3rd embodiment mentions, because make elastic construction comprise that two branches 58,60 provide the dynamic counteractive advantage of angular acceleration.In addition, the branch 58,60 of the bending of second embodiment rigidity that also allowed to obtain elastic construction 34 descends and is used for fixing enough radial plays of mandrel.
It should be noted that in first and second embodiment, each elastic construction 34 has the axial symmetrical plane P that extends along the radius at the middle part of the bridge 40 that passes through material.
When having elastic strip L
nThe elastic construction that piles up 34 be arranged in the thin top layer 39 and the elastic constructions 34 of fork-shaped when being arranged in the thick bottom 41, the combination of the dissimilar elastic construction that uses in second embodiment and the 3rd embodiment is favourable especially.In fact, owing to make and etching process, in silicon layer, obtain the thickness that possible minimum orifice depends on layer.The cube of the elasticity clamping force of each elastic construction 34 and the axial width of elastic construction 34 is proportional, this means the layer of the elastic strip that comprises that number relatively reduces, as has the situation of fork configuration, will have difficulties aspect enough clamping forces setting up.Therefore, the elastic construction 34 that is suitable for thin top layer 39 most is to have the elastic strip L that piles up
nStructure because they have used the many elastic strips of number.In addition, this type of in this top layer 39 has the elastic strip L that piles up
n Elastic construction 34 arrangement minimizes elastic strip L
nBetween radial space, therefore and increased elastic strip L
nNumber, thereby compensated because these elastic strips L
nThe lower elastic-restoring force that causes for a short time of axial width.
Certainly, above-described embodiment can mutually combine or combine with other embodiment.Especially, elastic construction 34 can be dissimilar, and for example the teaching according to European patent No 1 655 642 forms.For the type of every layer 39,41 elastic constructions of selecting 34 also can be opposite about described embodiment, especially, have and pile up elastic strip L
nThe elastic construction 34 of type can be arranged in the bottom 41, and fork-shaped elastic construction 34 can be arranged in the top layer 39.
According to changing (not shown), pointer 18,20,22 can be made in symmetrical SOI class plate, and promptly wherein top layer 39 and bottom 41 have the plate of identical thickness.
Though the present invention describes with reference to the assembly element that is formed by pointer 18,20,22, is not restricted to these embodiment.Therefore, assembly element can be formed by the rotating element of another type, for example by use the time meter in-core gear form.Assembly element also can be formed by non-rotating element, for example is provided as the sheet of brittle material that is assembled on another element that comprises the fixed central spindle that is made of metal or pillar.
Claims (11)
1. the assembly element (18 of meter (10) during being used for especially in the sheet of brittle material that is formed in silicon for example, 20,22), it is included as axial insertion mandrel (26,28,30) aperture that provides (32), the inwall (33) in aperture (32) comprises the elastic construction (34) that etches in the plate and elastic construction (34), and each comprises that at least one is used for radially clamping mandrel (26,28,30) area supported (36,62,64), with with assembly element (18,20,22) with respect to mandrel (26,28,30) fixing, it is characterized in that: assembly element (18,20,22) comprise the elastic construction (34) of first series (S1) in the top layer (39) that is etched in plate and be etched in the interior second series (S2) of bottom (41) of plate.
2. assembly element according to claim 1 (18,20,22) is characterized in that: the elastic construction (34) of two series (S1, S2) has identical type.
3. assembly element according to claim 1 (18,20,22) is characterized in that: the elastic construction (34) of first series (S1) is different with the type of the elastic construction (34) of second series (S2).
4. assembly element according to claim 1 (18,20,22), it is characterized in that: the elastic construction (34) of two series (S1, S2) is relative to each other skew on angle, makes at least one part of its area supported (36) relative to each other be offset on angle.
5. assembly element according to claim 1 (18,20,22) is characterized in that: plate is the plate that has the asymmetric silicon-on-insulator type of silicon top layer (39) that the middle layer (43) by monox separates and silicon bottom (41).
6. assembly element according to claim 5 (18,20,22), it is characterized in that: plate is the plate that has the asymmetric silicon-on-insulator type of thin top layer (39) and thick bottom (41), and the elastic construction (34) of first series (S1) is formed in the top layer (39) and the elastic construction (34) of second series (S2) is formed in the bottom (41).
7. assembly element according to claim 6 (18,20,22), it is characterized in that: assembly element (18,20,22) is formed by the rotating element (18,20,22) that rotation is fixedly secured to mandrel (26,28,30), the main body of rotating element (18,20,22) extends in the top layer (39), and the elastic construction (34) of second series (S2) is formed in extending axially of the main body that is positioned at bottom (41).
8. assembly element according to claim 1 (18,20,22) is characterized in that: assembly element (18,20,22) is formed by time meter pointer.
9. assembly element according to claim 1 (18,20,22) is characterized in that: the elastic construction (34) of at least one series (S1, S2) is such type, and wherein each elastic construction (34) is by several parallel elastic strip (L
n) radially stacked formation, each elastic strip (L
n) and contiguous elastic strip (L
n) by becoming two part (I
Na, I
Nb) straight line separator apertures (I
n) radially separate separator apertures (I
n) these two parts by the bridge (P of material
n) separately, the bridge (P of material
n) connected the elastic strip (L of two vicinities
n) and substantially with area supported (36) radially aligned, and being positioned at and the first elastic strip (L of piling up
1) last elastic strip (L on the relative side
n) with the remainder of the plate aperture by becoming single part to separating, the hole of single part is called mesopore (42), mesopore (42) defines the radial play space for elastic construction (34).
10. assembly element according to claim 1 (18,20,22), it is characterized in that: the elastic construction (34) of at least one series (S1, S2) is such type, wherein each elastic construction (34) is connected to the fork-shaped one-tenth of the inwall (33) in aperture by the bridge (56) by material, and fork is included on each side of bridge (56) of material usually to two branches (58,60) that mandrel (26,28,30) extends, and each branch (58,60) is included near the area supported (62,64) its free end (66,68).
11. meter (10) in the time of a kind is characterized in that: it comprises any described assembly element (18,20,22) according to aforementioned claim.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP06123781.4 | 2006-11-09 | ||
| EP06123781A EP1921516B1 (en) | 2006-11-09 | 2006-11-09 | Assembly component comprising two series of elastic structures and timepiece incorporating this component |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101178577A true CN101178577A (en) | 2008-05-14 |
| CN101178577B CN101178577B (en) | 2012-06-20 |
Family
ID=38279843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101695120A Active CN101178577B (en) | 2006-11-09 | 2007-11-08 | Assembly component comprising two series of elastic structures and timepiece incorporating this component |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US7575369B2 (en) |
| EP (1) | EP1921516B1 (en) |
| JP (1) | JP5175522B2 (en) |
| KR (1) | KR101326963B1 (en) |
| CN (1) | CN101178577B (en) |
| AT (1) | ATE455319T1 (en) |
| DE (1) | DE602006011760D1 (en) |
| HK (1) | HK1119789A1 (en) |
| SG (1) | SG143140A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103984219A (en) * | 2013-02-12 | 2014-08-13 | Eta瑞士钟表制造股份有限公司 | Shockproof centre wheel |
| CN106605177A (en) * | 2014-08-21 | 2017-04-26 | 尤尼韦索有限公司 | Watch hand |
| CN108885427A (en) * | 2016-03-15 | 2018-11-23 | 斯沃奇集团研究和开发有限公司 | Pointer and assemble method including end pieces |
| CN111902779A (en) * | 2018-07-31 | 2020-11-06 | 蒙特雷布勒盖股份有限公司 | Timepiece display mechanism with variable geometry and elastic hands |
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| CH702156B1 (en) * | 2009-11-13 | 2017-08-31 | Nivarox Far Sa | Spiral balance resonator for a timepiece. |
| EP2796940A3 (en) * | 2013-04-23 | 2016-05-04 | Rolex Sa | Clock component for receiving an organ by insertion |
| CH709905A2 (en) * | 2014-07-21 | 2016-01-29 | Dominique Renaud Sa | Pivot blade. |
| US9678477B2 (en) * | 2014-09-12 | 2017-06-13 | Seiko Instruments Inc. | Mechanical component, mechanical component manufacturing method, movement, and timepiece |
| JP6772790B2 (en) * | 2016-11-29 | 2020-10-21 | セイコーエプソン株式会社 | How to make watch parts and how to make watches |
| FR3065542B1 (en) * | 2017-04-25 | 2019-07-12 | Lvmh Swiss Manufactures Sa | METHOD FOR MANUFACTURING A MECHANISM |
| EP3671364A1 (en) * | 2018-12-17 | 2020-06-24 | Nivarox-FAR S.A. | Elastic holding member for fixing a timepiece component on a support element |
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- 2006-11-09 EP EP06123781A patent/EP1921516B1/en active Active
- 2006-11-09 AT AT06123781T patent/ATE455319T1/en not_active IP Right Cessation
- 2006-11-09 DE DE602006011760T patent/DE602006011760D1/en active Active
-
2007
- 2007-11-01 SG SG200717406-3A patent/SG143140A1/en unknown
- 2007-11-07 KR KR1020070112990A patent/KR101326963B1/en not_active IP Right Cessation
- 2007-11-08 CN CN2007101695120A patent/CN101178577B/en active Active
- 2007-11-09 JP JP2007291850A patent/JP5175522B2/en active Active
- 2007-11-09 US US11/937,789 patent/US7575369B2/en active Active
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2008
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103984219A (en) * | 2013-02-12 | 2014-08-13 | Eta瑞士钟表制造股份有限公司 | Shockproof centre wheel |
| CN103984219B (en) * | 2013-02-12 | 2017-09-26 | Eta瑞士钟表制造股份有限公司 | Shockproof clock and watch wheel |
| CN106605177A (en) * | 2014-08-21 | 2017-04-26 | 尤尼韦索有限公司 | Watch hand |
| CN106605177B (en) * | 2014-08-21 | 2020-03-27 | 尤尼韦索有限公司 | Watch hand |
| CN108885427A (en) * | 2016-03-15 | 2018-11-23 | 斯沃奇集团研究和开发有限公司 | Pointer and assemble method including end pieces |
| CN108885427B (en) * | 2016-03-15 | 2021-06-08 | 斯沃奇集团研究和开发有限公司 | Pointer including end piece and method of assembly |
| CN111902779A (en) * | 2018-07-31 | 2020-11-06 | 蒙特雷布勒盖股份有限公司 | Timepiece display mechanism with variable geometry and elastic hands |
| CN111902779B (en) * | 2018-07-31 | 2022-02-25 | 蒙特雷布勒盖股份有限公司 | Timepiece display mechanism with variable geometry and elastic hands |
| US11886147B2 (en) | 2018-07-31 | 2024-01-30 | Montres Breguet S.A. | Variable-geometry timepiece display mechanism with resilient hand |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5175522B2 (en) | 2013-04-03 |
| JP2008122383A (en) | 2008-05-29 |
| EP1921516B1 (en) | 2010-01-13 |
| US7575369B2 (en) | 2009-08-18 |
| KR101326963B1 (en) | 2013-11-13 |
| KR20080042699A (en) | 2008-05-15 |
| HK1119789A1 (en) | 2009-03-13 |
| ATE455319T1 (en) | 2010-01-15 |
| SG143140A1 (en) | 2008-06-27 |
| DE602006011760D1 (en) | 2010-03-04 |
| US20080112276A1 (en) | 2008-05-15 |
| EP1921516A1 (en) | 2008-05-14 |
| CN101178577B (en) | 2012-06-20 |
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